Bleach: The Strongest Shinigami - Chapter 1 ⥤ Nice to Meet You, I’m Aizen

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

One is the gentle and handsome zombie father who has raised her for thousands of years, and the other is the cold and awkward Professor Tianshi who always lectures her. I hate it, why are you digging by Uncle Mei? Jiang Xiaosi bared his teeth, I’ll choose whose blood tastes better… The story of a bouncing little zombie in the Tuoguxiang sex toy store.

- Description from novelbuddy

Mu Xuan transmigrated to a dangerous world of beast tamers. Fortunately, after he successfully formed a contract with a beast, he awakened two major cheats consecutively: bloodline extraction and merging as well as an information panel.

Hence, Mu Xuan extracted bloodlines and designed the strongest beast evolution lines until he became the strongest beast tamer.

The world was beneath his feet and the sky was not that far out of reach!

Icy Crystal Spirit evolved into Icy Crystal Frost Polar Dragon, and then Cinder Frost Dragon and finally Ember Star Dragon.

Space Tanuki evolved into Void Dragon Tanuki, and then Dimension Leaping Dragon Tanuki and finally Heaven Divine Dragon Tanuki.

Heavenly Fate Illusion Butterfly… Nine Lives Reincarnation Butterfly.

Destruction Demon Bear…

Divine Elf Envoy…

Golden Sun Crow…

Old Man Time…

No family, no power, no inheritance — a thrice-lacking protagonist. Just how will the seed rise up from the mud?

- Description from Novelupdates